Parametric model of diffuse reflectance spectra for NIR/SWIR-absorbing dyes on substrates using segmented reflectance

S. Ramsey; R. Viger; T. Mayo; S. G. Lambrakos

doi:10.1117/12.2616374

27 May 2022 Parametric model of diffuse reflectance spectra for NIR/SWIR-absorbing dyes on substrates using segmented reflectance

S. Ramsey, R. Viger, T. Mayo, S. G. Lambrakos

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Proceedings Volume 12106, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXIII; 121060R (2022) https://doi.org/10.1117/12.2616374
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States

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Abstract

This study describes parametric modeling of diffuse reflectance for NIR/SWIR-absorbing dyes on substrates, which is based on diffuse reflectance theory, background subtraction and expansion of the reflectance function by linear combinations of basis functions representing segmented reflectance. The basis functions are constructed using normalized absorbance functions that are determined according to background subtraction and inverse analysis, which is of diffuse reflectance spectra for dyes on fabric. Inverse analysis is effected using the Kubelka-Munk model. Prototype simulations of diffuse reflectance spectra from dyed fabric are described, which demonstrate characteristics of the parametric model.

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S. Ramsey, R. Viger, T. Mayo, and S. G. Lambrakos "Parametric model of diffuse reflectance spectra for NIR/SWIR-absorbing dyes on substrates using segmented reflectance", Proc. SPIE 12106, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXIII, 121060R (27 May 2022); https://doi.org/10.1117/12.2616374

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